Extraction And Identification Of Wear Features On Grinding Roller Surface Of Grinding Mill,
2024
College of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China;College of Mechanical Engineering, Zhengzhou University of Science and Technology, Zhengzhou, Henan 450064, China
Extraction And Identification Of Wear Features On Grinding Roller Surface Of Grinding Mill, Wang Xuefeng, Wu Wenbin, Zhao Baowei, Jia Huapo
Food and Machinery
Objective: To achieve surface wear life prediction of abrasive blast rollers of grinding machines. Methods: The wear images of the grinding roller surface were acquired by the built image acquisition system, and the texture parameters such as second order moments, entropy value, contrast and correlation in the wear cycle of the grinding roller were obtained based on the grey scale co-generation matrix algorithm, and the obtained texture feature parameters were input into the constructed PSO-based LS-SVM algorithm model to finally predict the wear life of the blast roller. Results: The particle swarm algorithm could optimize the penalty factor and kernel …
Apple Weight Estimation Based On Joint Image Optimal Feature Extraction And Improved Rbf Neural Network,
2024
Shanxi Pharmaceutical Vocational College, Taiyuan, Shanxi 030006, China
Apple Weight Estimation Based On Joint Image Optimal Feature Extraction And Improved Rbf Neural Network, Zhao Min, Wang Chengrong, Li Run
Food and Machinery
Objective: Taking Aksu apples as an example, a joint image optimal feature extraction and improved RBF neural network learning apple weight estimation method is designed to overcome the high cost and large error of manual grading and weighing. Methods: Firstly, an apple image acquisition system was established to obtain apple foreground image information. Secondly, the optimal subset extraction strategy for apple image feature sets was designed, by transforming the process of extracting the optimal subset into an objective function optimization problem, and an improved discrete locust optimization algorithm was designed to obtain the optimal apple image feature subset. Finally, a …
Effects Of Sodium Isoascorbate Treatment On Storage Quality Of Fresh-Cut Lanzhou Lily,
2024
College of Life Science, Dalian Minzu University, Dalian, Liaoning 116600, China;Key Laboratory of Biotechnology and Resource Utilization, Ministry of Education, Dalian, Liaoning 116600, China
Effects Of Sodium Isoascorbate Treatment On Storage Quality Of Fresh-Cut Lanzhou Lily, Xiong Siguo, Tang Xiaolan, Song Longlong, Pan Xuan, Ge Junqiao, Jiang Aili
Food and Machinery
Objective: This study aimed to extend the storage period of fresh-cut Lanzhou lily. Methods: Fresh-cut Lanzhou lily was used as raw materials. Following fresh-cut processing, the raw materials were soaked with 0 (CK), 1, 5, and 10 g/L of SI solution to analyze the quality changes of fresh-cut Lanzhou lily during storage. Results: The soaking treatment with 10 g/L of SI could better maintain the brightness of freshly cut Lanzhou lily. At 21 days of storage, the concentrations of malondialdehyde, soluble sugar, and browning were, respectively, 45%, 8%, and 23% lower than those of the CK group. The SI-treated group …
Effects Of Different Drying Methods On The Quality And Volatile Flavor Components Of Stropharia Rugosoannulata,
2024
Wencheng Institution of Modern Agriculture and Healthcare Industry， Wenzhou， Zhejiang 325300， China
Effects Of Different Drying Methods On The Quality And Volatile Flavor Components Of Stropharia Rugosoannulata, Wu Kunlong, Li Yanpo, Liu Biao, Chen Zhilong, Xu Yangli
Food and Machinery
Objective: This study aims to investigate the effect of different drying methods on the drying characteristics and volatile flavor of Stropharia rugosoannulata as raw material. Methods： The fresh S.rugosoannulata was dried by freeze-drying, heat pump drying, hot air drying, and microwave drying, and then the physical and chemical indexes were investigated. Results: The contents of crude protein, crude fat, ash, potassium, calcium, total flavonoids, essential amino acids, flavor amino acids and total amino acids are the highest in freeze drying. The six teenamino acids achieved 16.88 g/100 g in the freeze-drying. The rehydration rate and color all play the best …
Study On Process Optimization And Antioxidant Activity Of Fermentative Cynanchum Auriculatum Tablet,
2024
College of Marine and Biological Engineering, Yancheng Teachers University, Yancheng, Jiangsu 224007, China;Yanchen Tinghu Senior High School, Yancheng, Jiangsu 224002, China
Study On Process Optimization And Antioxidant Activity Of Fermentative Cynanchum Auriculatum Tablet, Bu Jing, Shi Yun, Lin Yan, Qin Yuanyuan, Hong Jian
Food and Machinery
Objective: This study aimed to optimize the process parameters of fermentative Cynanchum auriculatum (CA) tablets to develop a new type of fermented product of CA. Methods: Taking complete slices of CA as raw materials, the process parameters of fermentative CA tablets were optimized by response surface methodology based on single factor experiments with sensory score and total acid content as indicators, and the antioxidant activity and amino acid content of fermentative CA tablets were tested. Results: The optimal process parameters for fermentative CA tablets were material liquid at ratio 1∶1, fermentation at 31 ℃, inoculation amount 9.6% and fermenting for …
Construction Of An Array Of Antibody–Gold Nanoparticle Conjugates For Their Comparative Assessment On Multiplex Lateral Flow Test To Detect Mycotoxins,
2024
Technological University Dublin
Construction Of An Array Of Antibody–Gold Nanoparticle Conjugates For Their Comparative Assessment On Multiplex Lateral Flow Test To Detect Mycotoxins, Bilal Javed Nanolab Research Centre, Vinayak Sharma School Of Food Science And Environmental Health, Furong Tian Nanolab Research Centre
Articles
Bio-functionalized gold nanoparticles with anti-toxin antibody conjugates have unique physical, biochemical, and optical properties that can greatly improve the performance of biochemical assays because they can enhance the signal intensity of analyte, improve signal transduction, have higher sensitivity of analyte detection, and provide simple colorimetric signal readouts. The surface properties of gold nanoparticles, along with various antibody conjugates, play a significant role in terms of functionalizing gold nanoparticles, and the strategy for surface modification is of great significance to the application of gold nanoparticle-mediated biochemical assays. Spherical gold nanoparticles are among the most used reporter molecules in lateral flow assays. …
Research Advances On The Association Between Human Milk Oligosaccharides And Infant Health,
2024
Ausnutria Dairy 〔China〕 Co., Ltd., Changsha, Hunan 410200, China
Research Advances On The Association Between Human Milk Oligosaccharides And Infant Health, Jiang Yikang, Dong Ling, Liu Hongfei, Pan Lina, Hu Yibo, Peng Xiyang, Kang Wenli, Peng Xiaoyu, Wang Jiaqi, Li Wei
Food and Machinery
Human milk oligosaccharides （HMOs） are a group of complex glycans in human milk and play an important role in promoting the growth and development of infants, and more than 200 kinds of HMOs have been identified so far. In this paper, the types and structures of HMOs and their roles in improving infant intestinal health, promoting immune system development and brain development were reviewed. The application status of HMOs was summarized, the possibility and necessity of industrial production and application of HMOs in the future were prospected.
Research And Challenges Of Micropumps And Microvalves In Microfluidic Systems,
2024
Guangzhou Daan Gene Co., Ltd., Guangzhou, Guangdong 510000, China
Research And Challenges Of Micropumps And Microvalves In Microfluidic Systems, Liu Linbo, Jiang Zhuo, Shen Xuanxuan, He Ye
Food and Machinery
Microfluidic chips are driven by microfluidic pumps and controlled by microfluidic valves in microfluidic systems to achieve accurate manipulation of microfluidics. With the continuous improvement of microfluidic chip integration, liquid channels have become more complex and have smaller volumes. How to achieve fluid drive and control at the micro scale has become a key focus in chip design. The paper elaborates on the current research status, key technologies, and development trends of micro pumps and micro valves both domestically and internationally, aiming to provide reference and guidance for the development of related industries and technological research.
Discovery, Preparation And Identification Of A New Type Of Oxyphenisatine Di（Acetate） Analogue In Dietary Supplement,
2024
Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei 430075, China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei 430075, China;Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Food for State Market Regulation, Wuhan, Hubei 430075, China
Discovery, Preparation And Identification Of A New Type Of Oxyphenisatine Di（Acetate） Analogue In Dietary Supplement, Xia Jintao, Wu Wanqin, Zhu Songsong, Jiang Feng
Food and Machinery
Objective: To find, prepare and identify a new oxyphenisatine di（acetate） analogue. Methods: A suspected derivative of oxyphenisatine di（acetate） was found by high-performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry during the routine screening of weight loss healthcare product. The compound was isolated and purified by column chromatography, and the possible structures were inferred from the information of isotope mass spectra, secondary ion mass spectra, one-dimensional and two-dimensional NMR spectra. Finally, all possible structures were prepared by de novo synthesis strategy, and their fine structures were confirmed by spectral comparison. Results： The compound was identified as 5-Cl oxyphenisatine di（acetate）, a new type of oxyphenisatine di（acetate）, …
Optimization Of Culture Conditions For Maximum Viable Count Of Brevibacillus Laterosporus Based On Mtt Colorimetry And Response Surface Methodology,
2024
College of Agriculture, Henan University of Science and Technology, Luoyang, Henan 471000, China
Optimization Of Culture Conditions For Maximum Viable Count Of Brevibacillus Laterosporus Based On Mtt Colorimetry And Response Surface Methodology, Song Peng, Li Lixiang, Zhao Biao, Wang Zele, Sun Xingxin
Food and Machinery
Objective: This study aimed to explore the optimal medium composition and culture conditions for obtaining the maximum viable count of Brevibacillus laterosporus. Methods: Based on establishing the correlation regression equation between the MTT colorimetric method and plate counting method, the optimal medium composition (carbon source, nitrogen source, inorganic salt) and fermentation conditions (initial pH, temperature, inoculation amount, KH2PO4) for obtaining the maximum viable count of B. laterosporus were optimized. Results: A significant linear correlation for viable count determination between MTT colorimetry and plate counting (R2>0.999) was found; Maltose, CaCl2, initial …
Green Analysis Of Glyphosate And Its Metabolite Amino Methyl Phosphoric Acid In Tea,
2024
Hubei Provincial Institute for Food Supervision and Test, Wuhan, Hubei 430075, China;Key Laboratory of Detection Technology of Focus Chemical Hazards in Animal-derived Food for State Market Regulation, Wuhan, Hubei 430075, China;Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test, Wuhan, Hubei 430075, China
Green Analysis Of Glyphosate And Its Metabolite Amino Methyl Phosphoric Acid In Tea, Li Beibei, Wang Wei, Jiang Feng, Wang Huixia, Chen Li
Food and Machinery
Objective： This study aimed to develop an ion chromatography-tandem mass spectrometry (IC-MS/MS) for the analysis of glyphosate and its metabolite amino methyl phosphoric acid (AMPA) residues in tea without derivatization. Methods： Tea samples were ultrasonically extracted with 20 mmol/L NaOH aqueous solution and cleaned up by dispersive solid-phase extraction (150 mg primary-secondary amine (PSA), 15 mg C18, 15 mg graphitized carbon black (GCB)). The samples were separated on an ion chromatographic column AS11-HC-4 μm (2 mm×250 mm) by using an isometric elution procedure of 35 mmol/L aqueous solution of sodium hydroxide as mobile phase. A multiple reactions monitoring …
Migration Quality Of Formaldehyde In The Polylactic Acid Straw Detected By Hplc,
2024
Yangzhou Centre for Food and Drug Control, Yangzhou, Jiangsu 225000, China
Migration Quality Of Formaldehyde In The Polylactic Acid Straw Detected By Hplc, Hu Yun, Zou Yongping, Zhou Yuanyuan, Wang Shuai, Liang Zhichun
Food and Machinery
Objective: A formaldehyde detection method was established for the accurate analysis of the migration of formaldehyde in water and acid simulants from the polylactic acid straws. Methods: The preferred chromatographic conditions were: mobile phase water-acetonitrile (Vwater∶Vacetonitrile of 55∶45), column temperature of 35 ℃, detection wavelength of 355 nm. The optimized 2,4-dinitrophenylhydrazine derivative conditions were: the acetic acid in acidic 2,4-dinitrophenylhydrazine solution of 1.5 mL/100 mL (pH 3.07), the molar ratio of 2,4- dinitrophenylhydrazine of quadruple formaldehyde, the reaction temperature of 45 ℃, and the reaction time of 40 min. Results: The linear equation of formaldehyde-2,4-dinitrobenzene …
Rice Fatty Acid Detection Method Combining Hyperspectral Technology With Improved Lssvm,
2024
Lu'an Vocational and Technical College, Changzhi, Shanxi 046000, China
Rice Fatty Acid Detection Method Combining Hyperspectral Technology With Improved Lssvm, Fu Juanjuan, Chen Chunru, Huang Zhenlin, Sun Feng
Food and Machinery
Objective: To solve the problems of low accuracy and poor efficiency in the existing rice quality testing methods of food enterprises. Methods: Based on a hyperspectral data acquisition system, a fast and non-destructive detection method for stored rice quality was proposed, which combined an improved bacterial foraging algorithm and least squares support vector machine. By applying the improved bacterial foraging algorithm, the hyperparameters (regularization parameter and kernel parameter) of the least squares support vector machine were optimized to achieve rapid and non-destructive detection of rice quality. its performance was analyzed through experiments. Results: The proposed method can achieve rapid and …
Application Of Gas Chromatography Combined With Stoichiometry In Discriminant Analysis Of Pseudo Mixtures Of Walnut Oil And Rapeseed Oil,
2024
Nanyang Product Quality Inspection and Testing Center, Nanyang, Henan 473000, China
Application Of Gas Chromatography Combined With Stoichiometry In Discriminant Analysis Of Pseudo Mixtures Of Walnut Oil And Rapeseed Oil, Wu Shibo, Liu Yanqi, Li Chao, Ma Ning, Yao Heng, Wang Mengmeng
Food and Machinery
Objective: This study aimed to investigate different discriminant analysis models for pseudo-mixtures of walnut oil and rapeseed oil. Methods: Gas chromatography technology was used to analyze the fatty acid content in the adulterated mixture of walnut oil and rapeseed oil. Chemical stoichiometric methods were used to model the gas chromatography data, and discriminant analysis was performed on different proportions of walnut oil and rapeseed oil mixtures. Results: Pure walnut oil and adulterated walnut oil were distinguihed by using Principal Component Analysis (PCA) identified, and percentage of adulteration in the sample was calculated. 83.33% of the samples were successfully categorized using …
Rapid Determination Of Moisture Content Of High Cellulose And Lignin Materials By Near-Infrared Diffuse Reflectance Spectroscopy,
2024
College of Food Science and Technology, Hunan Agricutural University, Changsha, Hunan 410128, China;Hunan Onyear Industry Co., Ltd., Xiangtan, Hunan 411228, China
Rapid Determination Of Moisture Content Of High Cellulose And Lignin Materials By Near-Infrared Diffuse Reflectance Spectroscopy, Yao Li, Li Zongjun, Zhu Menjun, Dai Hairong, Li Xiaoyan
Food and Machinery
Objective: To establish a rapid method for moisture detection of high cellulose and lignin materials. Methods: The areca nut, a Chinese herbal medicine containing high cellulose and lignin, was selected. Use a near-infrared spectrometer to collect near-infrared diffuse reflectance spectra. Apply NIR Cal modeling software to preprocess the spectral data, select the optimal feature wavelengths, and use partial least squares (PLS) analysis to establish a quantitative model for areca nut moisture content. Results: A quantitative model for areca nut moisture content was acquired, with the coefficient of determination of 0.994 2, the root mean square of the calibration error (RMSEC) …
Numerical Simulation Of The Effect Of Freezing Sword Structure On The Ice Performance Of Block Ice Machine,
2024
Tianjin University of Commerce, Key Laboratory of Tianjin Refrigeration Technology, Tianjin 300314, China
Numerical Simulation Of The Effect Of Freezing Sword Structure On The Ice Performance Of Block Ice Machine, Sun Huan, Yang Kai, Liu Xiaotong
Food and Machinery
Objective: To add a freezing sword inside the evaporator of the ice mould of a direct-cooled block ice machine to achieve rapid ice production. Methods: COMSOL was used to simulate the effects of the cross-sectional shape of the freezing sword and the freezing sword inclination angle on the ice production process. Results: As the ice making process continued, the average internal temperature of the ice mould with additional freezing swords of different cross-sectional shapes decreased and the volume fraction of solid phase in the ice mould increasedd with time, but the average internal temperature of the ice mould with additional …
Establishment And Experiment Verification Of Screw Thrust Model Of Spiral Robot For Granary,
2024
School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, China
Establishment And Experiment Verification Of Screw Thrust Model Of Spiral Robot For Granary, Zhao Xianfeng, Yin Qiang, Yu Junpeng, Yang Liu, Zhang Yonglin
Food and Machinery
Objective： To clarify the interaction mechanism model between screw and grain in grain pile depth, and to determine the mechanical characteristics of screw of spiral robot for granary at different speeds and depths, so as to provide the design basis for the motion control system. Methods： Using mathematical model, combining Janssen grain storage pressure theory and Janosi shear-displacement equation, the shear stress model was established, and then the thrust model of screw was derived from the shear stress model. Through the design and construction of the experimental device, the combination of different speed and pressure was used to carry out …
Simulation Research On The Transfer And Collection Part Of Warehouse Bottom Surplus Grain Cleaning Device,
2024
School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China
Simulation Research On The Transfer And Collection Part Of Warehouse Bottom Surplus Grain Cleaning Device, He Yingzhen, Wang Mingxu, Wang Wei, Li Shubo
Food and Machinery
Objective: To verify whether the structure design of the conveying part and the collecting part of the cleaning device designed for the surplus grain at the bottom of the cottage warehouse is reasonable, and to determine the key parameters of the device operation, so as to avoid the waste of procurement and manufacturing. Methods: Based on discrete element method, EDEM simulation software was used to simulate the operation effect of the transfer part and the collection part, and the drop rate was used as the evaluation parameter. Results: Through the observation and analysis of the simulation results, it was concluded …
Design And Processing Test Of Eel Automatic Filleting Machine,
2024
Hubei University of Technology, Hubei Engineering Technology Research Center for Intelligent Agricultural Machinery, Wuhan, Hubei 430068, China
Design And Processing Test Of Eel Automatic Filleting Machine, Liu Mingyong, Ouyang Zhouhuan, Han Xinguang, Xiang Xue, Zhu Lin
Food and Machinery
Objective: A special cutting mechanism for slicing elongated fish with smooth surface was designed. Methods: Taking the slimy eel as the research object, the mechanism of clamping and cutting operation was analyzed. Taking cutting quality and cutting time as test indexes, the influence of main parameters such as clamping wheel speed, cutting tool speed and clamping wheel surface geometry on cutting quality and cutting time were investigated. Results: The main factors affecting cutting quality were blade speed and clamping wheel limit height, and the most important factors affecting cutting time were clamping wheel speed. When the clamping wheel limit height …
Effects Of Irradiation Methods On Quality And Shelf Life Of Choerospondias Axillaris Pastilles,
2024
Hunan Province Grain and Oil Product Quality Monitoring Center, Changsha, Hunan 410008, China
Effects Of Irradiation Methods On Quality And Shelf Life Of Choerospondias Axillaris Pastilles, Mao Qingxiu, Xu Yuanfang, Chen Quling, Zhang Qiling, Li Wenge, Yang Yi
Food and Machinery
Objective: This study aimed to explore the best irradiation method and irradiation dose to treat Choerospondias axillaris pastilles. Methods: C. axillaris pastilles were irradiated with 0～10 kGy gradient dose of 60Co-γ ray and electron beam respectively, the changes of the indexes including microbial load, protein, fat, total sugar, L(+)-ascorbic acid, organic acids, pH value, sensory quality, and the shelf life quality stored in 0～360 days at room temperature were studied. Results: 60Co-γ ray and electron beam irradiation both had bactericidal effects on C. axillaris pastilles, all microbial limit indexes including aerobic bacterial count, coliform bacteria, …
